Sash and door lock.



PATENTED JUNE 5, 1906.

F. E. BUSGH. SASH AND DOOR LOCK.

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UNITED STATES PATENT OFFICE.

FEDOR E. BUSCl-l, ()F CHICAGO, ILLINOIS.

SASH AND DOOR LOCK.

Specification of Letters Patent. Patented June 5, 1906.

- Application filed August 11,1905. Serial No. 273 705.

To all whom it may con rn: Fig. 5, a. detail vertical section of a door and 55 Be it known that I Fnoon E. Boson, a citizen of the United tates, residin in the city of Chicago count of Cook, end tete of Illinois, have invente certain new end useful Improvements in Sesh end Ileor Locks, of which the following is a full, clear, and exact specification.

This invention relates to im rovements in sash and door locks composed of two members hinged together, one of which is permancntlysecured to the upper sash or to a doorframe and the other is adapted to be swun outwardly across the path of movement 0 the lower sash or the ddor, as may he, and either lock the sash against any movement whatever or limit the opening thereof end look a door in a closed position, which swinging member is also adapted to be swun inwardly against the fixodmember out oi the path of movement of a. sosh or door.

The prime object of my invention is to have such a look so constructed that when used in connection with a sash it will auto matically assume a locking position when released from a osition between the sash.

A further 0 ject of my invention is a sashlock which when released from a closed position will not only automatically swing to a locking position, but which on assuming a locking position will be automatically locked against movement in any direction until un= locked by hand.

With these ends in View in consists in certain features and novelty in construction, combination, and arrangement of parts by which said objects and certain other ob'ects hereinafter a peering are atteined, all as fully described in reference to the accompanying drawings and more particularly pointed out in the claims.

In said drawings, Fi re I illustrates a perspective view of 2. cos Jock embodying my invention, shown in its operative position in connection with a. window sash and frame illustrated in detail; Fig. 2, a detached top plan view of a sash-lock embodying m invention; Fi 3, a detail perspective 0 one of the mom ers and particularly illustrating the lock-joint thereof; Fig. 4, a. side elevation showing the locking member in its locking;

osition, the dotted lines illustrating the unocked position and the full lines the position assumed by the locking member when locked;

invention 7 its frame, illustrating the position of the lock when the door is closed; Fig. 6, a side elevation of o. modified form of sash-lock embracing my invention.

Similar figures of reference indicate the same parts in the several figures of the drawmgs.

7 indicates the fixed member of my sash and door lock, which, as shown in Fig. 1, is rigidly secured, by means of screws 8, to the S! e bar of an upper sash 9 of a window 10, which fixed member 7 is provided at one side, respectively, with upper and lower tubular lugs 11 an 12, forming bearings for a in 13, which pin also passes through a tubu or lug 14 on the movable or looking member 15, which is thereby hinged to the fixed member 17 on a. vertical axis.

Coiled shout the pin at a point between the lug 12 on the fixed member and the lower end of the lug 14 on the hinged member is a spring 16, projecting ends of which respectively bear against the fixed member '2" and the hinged or looking member 15 end in such relation thereto that when the swinging or looking member is forcibly swung from a position at a right engleto the fixed member, as shown in Figs. 1 and 2, toward a position parallel thereto the spring will be compressed and as a result automatically force the locking member to the position shown in said figures when it is released and maintain the locking member in that position until the resistcnce of the spring is overcome by force. In this connection it should be noted that owing to the usual guide=strp 17, employed between the upper sash 9 on be lower sash 18, the fastener when folded upon itself, as above described, sets so far in beyond the lower sash that when it is desirable to raise the window without locking it the lower sash will freely pass the upper sash, and vice versa.

When the locking member is in the position shown in Figs. 1 and 2that is to say, at a right angle to the fixed member--it projects across the upper end of the lower sash, and if the lock is to be close down to the lower horizontal bar of the upper sash neither sesh can move when the locking member is in that position; but my invention is particularly adopted to provide for partially opening one sash to the exclusion of the other or eat-11: be.1jb;fff u .m, buria and when used for such purpose the fixed member of the lock is secured on the side bar 9 of the upper sash at a point above its lower horizontal bar-say, for example, sixinches-w1th the result that when the locking member is in the operative position (shown in Fig. 1) the lower sash may be raised six inches or the upper sash lowered six inches and either sash opened any part of this distance and the other sash the remainder of said distance, while in'the meantime .both sash are locked against any further openin and as a result ventilation may be had wit out the possibility of a surreptitious entrance through the window. On the other hand, if it is desirable to open either of said sash a greater distance than that for which the lock is set the pres suremf the locking member toward the fixed member a sufficient distance to enable the lower sash to pass it will provide for such opening, while at the same time both sash will be automatically locked the moment one or the other returns toward a closed position until the locking member is freed from the lower sash, for then the spring 16 will immediatelyforce theswinging member to its locking position.

In order to prevent the possibility of the swinging member actuating on the putty edge of the lower sash when releasing it from between the sash, the free end of the locking member 15 is preferably beveled at 19, so that, for example, in lowering the lower sash from a position above that for which the lock is set, the putty edge will ride downwardly on the incline without injuring the putty edge and until the sash is freed from the locking members, which by the action of its spring is forced to its locking position over the lower sash.

To prevent any possible manipulation of the locking member when in its locking position from the outside of the window as, for example, by passing any instrument between the two sash, as ma be when the one is slightly above the ot er, from the )osition shown in Fig. 1the adjacent ends oft ebearings11 and 14, respectively, on the fixed member 7and the locking member 15are cut out, as shown in Fig. 3, forming opposing bearingsurfaces 20 and opposing steps 21, so arranged with reference to each other that the moment the locking member is swung to its locking osition the stops 21, by the lifting action 0 the spring 16, lift the locking member 15, as indicated in Fig. 4, until the stops are in contact with each other, with the result that the lockin member is positively locked a ainst any su stantial movement out of its 100 'ng position and will so remain until it is forcibly depressed until the opposing stops are out of contact, when 1 may be swung toward the fixed member if it is desired to unlock the sash. On the other hand, by the reverse operationthat is to say, when the sash-lock is released from between the two sashit will automatically swing to and be locked in its operative position, or, in other words, the spring performs two functions, one of which is to automatically force the locking member to its 0 erative position and the other is to lift, and t ereby automatically lock it to the fixed member the instant it arrives at its locking position, the latter of which is due to the vertical force continuously exerted by the spring upwardly against the tubular bearing 14 of the locking member. In this connection it should be observed that a pin or projection on one member and a recess in the other will perform the same function, and therefore be the equivalent of cutting out the bearings, as above de-' scribed.

In Fig. 6 is shown a modification of my invention, which consists in omitting the feature by which one member is locked to the other and in which there is added to the locking member a lower lug 14, between which and the lug 14 a spring is confined instead of as shown in Fig. 1, with the result that the vertical expansion and contraction of the same has no utility further than it will effect the tension exerted by its free ends bearing against both members.

In Fig. 5 I have shown the ada tation of my invention as and for a door-loo in which the fixed member 7 is secured to the vertical jamb 22 of the door 23, so that when the door is closed the locking member 15 will project across the inner face of the door, in which position the two members will be locked together and the door held in a closed osition until the locking member is depresse and released from its stops.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. A sash-fastener comprising in combination a fixed member, a swinging member and a pivot connecting said members, a locking device opposing arts of which are upon adjacent portions of said members and a spring coiled about said pivot and provided with arms bearing against both of said members and constantly tendin to move the swinging member toward and 1' it into a locked osition with the fixed member substantial y as described.

2. A sash-fastener comprising in combination a fixed member provided toward its upper end with a locking part, a swinging member hinged thereto and provided with a locking part below but adapted to engage with said upper member said swinging member being provided with a lower en bearing, whereby the swin 'ng member is automatically secured in its l iicked position and against accidental detachment by ppward thrust or sated on the hinged pin and adapted to raise force substantially as described. one of said members so as to lock them in 3. A sash-fastener comprising in eombinafixed position substantially as described. tion a fixed member, a swinging member FEDOR E. BUSCH. 5 hinged to the fixed member said members Witnesses:

having opposing bearing-surfaces and stops 5N0. G. ELLIOTT,

on adjacent portions thereof, and a spring 10- M. S. REEDER. 

